-//===------------------------------------------------------------------------===
+//===----------------------------------------------------------------------===//
// LLVM 'DIS' UTILITY
//
// This utility may be invoked in the following manner:
//
// TODO: add -vcg which prints VCG compatible output.
//
-//===------------------------------------------------------------------------===
+//===----------------------------------------------------------------------===//
-#include <iostream.h>
-#include <fstream.h>
#include "llvm/Module.h"
#include "llvm/Assembly/Writer.h"
#include "llvm/Bytecode/Reader.h"
-#include "llvm/Tools/CommandLine.h"
#include "llvm/Method.h"
-#include "llvm/CFG.h"
+#include "Support/DepthFirstIterator.h"
+#include "Support/PostOrderIterator.h"
+#include "Support/CommandLine.h"
+#include <fstream>
+#include <iostream>
+using std::cerr;
-int main(int argc, char **argv) {
- // WriteMode - The different orderings to print basic blocks in...
- enum {
- Default = 0, // Method Order (list order)
- DepthFirst, // Depth First ordering
- ReverseDepthFirst, // Reverse Depth First ordering
- PostOrder, // Post Order
- ReversePostOrder // Reverse Post Order
- } WriteMode = Default;
+// OutputMode - The different orderings to print basic blocks in...
+enum OutputMode {
+ Default = 0, // Method Order (list order)
+ dfo, // Depth First ordering
+ rdfo, // Reverse Depth First ordering
+ po, // Post Order
+ rpo, // Reverse Post Order
+};
- ToolCommandLine Opts(argc, argv, false);
+cl::String InputFilename ("", "Load <arg> file, print as assembly", 0, "-");
+cl::String OutputFilename("o", "Override output filename", cl::NoFlags, "");
+cl::Flag Force ("f", "Overwrite output files", cl::NoFlags, false);
+cl::EnumFlags<enum OutputMode> WriteMode(cl::NoFlags,
+ clEnumVal(Default, "Write basic blocks in bytecode order"),
+ clEnumVal(dfo , "Write basic blocks in depth first order"),
+ clEnumVal(rdfo , "Write basic blocks in reverse DFO"),
+ clEnumVal(po , "Write basic blocks in postorder"),
+ clEnumVal(rpo , "Write basic blocks in reverse postorder"),
+ 0);
- // We only support the options that the system parser does... if it left any
- // then we don't know what to do.
- //
- if (argc > 1) {
- for (int i = 1; i < argc; i++) {
- if (string(argv[i]) == string("--help")) {
- cerr << argv[0] << " usage:\n"
- << "\tx.bc - Parse <x.bc> file and output to x.ll\n"
- << "\tno .bc file - Parse stdin and write to stdout.\n"
- << "\t-dfo - Write basic blocks in depth first order.\n"
- << "\t-rdfo - Write basic blocks in reverse DFO.\n"
- << "\t-po - Write basic blocks in postorder.\n"
- << "\t-rpo - Write basic blocks in reverse postorder.\n"
- << "\t--help - Print this usage information\n\n";
- return 1;
- } else if (string(argv[i]) == string("-dfo")) {
- WriteMode = DepthFirst;
- } else if (string(argv[i]) == string("-rdfo")) {
- WriteMode = ReverseDepthFirst;
- } else if (string(argv[i]) == string("-po")) {
- WriteMode = PostOrder;
- } else if (string(argv[i]) == string("-rpo")) {
- WriteMode = ReversePostOrder;
- } else {
- cerr << argv[0] << ": argument not recognized: '" << argv[i] << "'!\n";
- }
- }
- }
-
- ostream *Out = &cout; // Default to printing to stdout...
+int main(int argc, char **argv) {
+ cl::ParseCommandLineOptions(argc, argv, " llvm .bc -> .ll disassembler\n");
+ std::ostream *Out = &std::cout; // Default to printing to stdout...
- Module *C = ParseBytecodeFile(Opts.getInputFilename());
+ Module *C = ParseBytecodeFile(InputFilename);
if (C == 0) {
cerr << "bytecode didn't read correctly.\n";
return 1;
}
- if (Opts.getOutputFilename() != "-") {
- Out = new ofstream(Opts.getOutputFilename().c_str(),
- (Opts.getForce() ? 0 : ios::noreplace)|ios::out);
- if (!Out->good()) {
- cerr << "Error opening " << Opts.getOutputFilename()
- << ": sending to stdout instead!\n";
- Out = &cout;
+ if (OutputFilename != "") { // Specified an output filename?
+ if (!Force && std::ifstream(OutputFilename.c_str())) {
+ // If force is not specified, make sure not to overwrite a file!
+ cerr << "Error opening '" << OutputFilename
+ << "': File exists! Sending to standard output.\n";
+ } else {
+ Out = new std::ofstream(OutputFilename.c_str());
+ }
+ } else {
+ if (InputFilename == "-") {
+ OutputFilename = "-";
+ } else {
+ std::string IFN = InputFilename;
+ int Len = IFN.length();
+ if (IFN[Len-3] == '.' && IFN[Len-2] == 'b' && IFN[Len-1] == 'c') {
+ // Source ends in .bc
+ OutputFilename = std::string(IFN.begin(), IFN.end()-3);
+ } else {
+ OutputFilename = IFN; // Append a .ll to it
+ }
+ OutputFilename += ".ll";
+
+ if (!Force && std::ifstream(OutputFilename.c_str())) {
+ // If force is not specified, make sure not to overwrite a file!
+ cerr << "Error opening '" << OutputFilename
+ << "': File exists! Sending to standard output.\n";
+ } else {
+ Out = new std::ofstream(OutputFilename.c_str());
}
+ }
+ }
+
+ if (!Out->good()) {
+ cerr << "Error opening " << OutputFilename
+ << ": sending to stdout instead!\n";
+ Out = &std::cout;
}
-
+
// All that dis does is write the assembly out to a file... which is exactly
// what the writer library is supposed to do...
//
// methods... more should definately be printed. It should be valid output
// consumable by the assembler.
//
- for (Module::MethodListType::iterator I = C->getMethodList().begin();
- I != C->getMethodList().end(); I++) {
+ for (Module::iterator I = C->begin(), End = C->end(); I != End; ++I) {
Method *M = *I;
(*Out) << "-------------- Method: " << M->getName() << " -------------\n";
switch (WriteMode) {
- case DepthFirst: // Depth First ordering
- copy(cfg::df_begin(M), cfg::df_end(M),
- ostream_iterator<BasicBlock*>(*Out, "\n"));
+ case dfo: // Depth First ordering
+ copy(df_begin(M), df_end(M),
+ std::ostream_iterator<BasicBlock*>(*Out, "\n"));
break;
- case ReverseDepthFirst: // Reverse Depth First ordering
- copy(cfg::df_begin(M, true), cfg::df_end(M),
- ostream_iterator<BasicBlock*>(*Out, "\n"));
+ case rdfo: // Reverse Depth First ordering
+ copy(df_begin(M, true), df_end(M),
+ std::ostream_iterator<BasicBlock*>(*Out, "\n"));
break;
- case PostOrder: // Post Order
- copy(cfg::po_begin(M), cfg::po_end(M),
- ostream_iterator<BasicBlock*>(*Out, "\n"));
+ case po: // Post Order
+ copy(po_begin(M), po_end(M),
+ std::ostream_iterator<BasicBlock*>(*Out, "\n"));
break;
- case ReversePostOrder: { // Reverse Post Order
- cfg::ReversePostOrderTraversal RPOT(M);
+ case rpo: { // Reverse Post Order
+ ReversePostOrderTraversal RPOT(M);
copy(RPOT.begin(), RPOT.end(),
- ostream_iterator<BasicBlock*>(*Out, "\n"));
+ std::ostream_iterator<BasicBlock*>(*Out, "\n"));
break;
}
default:
}
delete C;
- if (Out != &cout) delete Out;
+ if (Out != &std::cout) delete Out;
return 0;
}
projects / oota-llvm.git / blobdiff